Someone leaked the final pages of X-Force #50:
spoilers:end of spoilers
Bad-Beast sacrifices his life to disarm his superweapon to save Wonder-man, even though it wouldn't have hurt him anyway since he's an ionic being. Good-Beast remains and moves in with Wonder-man and decides to lay low for awhile
So much for Percy saying the ending of X-Force will mirror the beginning. This will make a lot of people angry, but it makes me happy.